Has this topic stopped?
Eventually, as Naesala and Pinapple have already mentioned, the biggest problem is not the card itself, not even the Ghostmare combo but the deck around it.
It
is true that it's hard to put enough Steals and Reverse Times (or an Eternity, some Siphons etc.) in this deck but when you encounter a Ghostmare
you don't know the exact deck, nor the draw of your opponent. So, you
still have to play against it expecting that you're goint go come across a Steal or a Reverse Time any time. Plus, you should keep some cards in your hand even if you could play them. All these lead to a boring and an unreliable match. Against a bad draw (or a bad design) you still might play extra-cautiously while sometimes you simply can't win. In addition, the Ghost itself hits you hard with its attack...
So, Ghost of the Past is "situationally overpowered".
Maybe the card should remain the same (or even the cost could be lowered as a buff)
but, it should be moved to another element with which a lesser versatibility could be reached.
perhaps (
/
are common anyway, like Pestal), or
or something else...
Frankly,
/
provides almost everything – massive creature and permanent control, multiple draws, healing, hard hitters... why must such a powerful combo like Ghostmare strenghten
this "pairing" of elements?